2014-11-26 9:58 GMT+01:00 'Jasper N. Brouwer' via doctrine-user <
[email protected]>:
> When using annotations, the classes and traits are merely the medium in
> which the mappings are defined.
> When using XML, YAML, etc, the mapping definitions are completely
> decoupled from code. So referring to a trait doesn't make a lot of sense to
> me.
>
> But I agree that some sort of "import" or "extend" logic in XML, YAML, etc
> would be nice!
>
> PS: "import" is already supported by Symfony2's config / YAML parser (not
> sure in which of these 2 it's located).
>
Actually I thought more of a "inherit" than an "import"/"include", because
latter one impliesy, that the imported file is a kind of fragment, instead
of a full qualified entity-xml/yml-document, which imo would be quite ugly.
With "inherit" I meant, that the source could be like
<entity class="Trait">
<id name="id" />
</entity>
<entity class="ConcreteClass">
<field name="foo" />
</entity>
and "inherit" would copy all elements within "<entity>" of the given class.
As a side effect (as seen above) it would also allow to copy the mappings
from other real, or abstract entities too, similar to "mappedSuperclass",
but without the need to actual let the entity inherit from the other class.
While typing, TL;DR: I thought of it as "copy elements from X" :)
>
> --
> Jasper N. Brouwer
> (@jaspernbrouwer)
>
>
> On 25 November 2014 at 22:20:23, Sebastian Krebs ([email protected])
> wrote:
> > > This is logical given the way traits are working in PHP. They are
> > > compiler-based copy/paste. They don't exist during the runtime of the
> > > class. The reason why annotations can be defined in an handy way for
> traits
> > > is because they are copy/pasted too (but the loading is actually done
> for
> > > the class, not for the trait)
> >
> > Makes sense .... Maybe something like an import would be useful?
> >
> > <entity>
> > <inherit class="TraitName" />
> > </entity>
> >
> > I don't know, if that's even possible.
>
>
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